Handle-bar for bicycles.



' PATENTBD JAN. 31, 1905.

ZSHEETSPSHBBT 1. y

y P. J.v CALKINS. l HANDLE BAR PORBIG'YGLBS. 'APELIOATION FILED JUIAY2,1904.

Nav-81,128.

@A aww No. 781,123. PATBNTBD JAN. s1, 1905. P. J. GALKINS.

HANDLE BAR POR BICYGLBS.

' APPLIgA-TION FILED JULY 2,1904.

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No. velues.

Patented january' 31, 1905'.

PATENT OEEICE.

' FRANK J. OALKINS, OF TOLEDO, OHIO.

HANDLE-BAR FOR BICYCLES.

SPECIFICATION forming part lof Letters Patent No.l 781,128, datedJanuary 31, 1905.

Application filed July 2,1904.. Serial No. 215,194.

To al?, whom t may concern:

Be it known that I, FRANK J. OALKINs, a citizen of the United States ofAmerica, and a resident of Toledo, in the county of Lucas and State ofOhio, have invented certain new and useful Improvements in Handle-Barsfor Bicycles, of which the following is a specilication.

This invention relates to handle-bars for bicycles, and has for itsobject to provide an automatically-adjustable im provement whereby therider can instantly and easily change and adjust each bar eitherseparately ortogether at will without either having to remove his hands,reduce the speed, or stop the vehicle.'v y

The invention consists in the new and novel constructions andcombinationsfof parts for accomplishing the purpose, substantially ashereinafter described and claimed, and illustrated in the accompanyingdrawings, in

whicl `Sheet 1, Figure 1, is a top or plan view of the handle-bar headembodying my invention. Fig. 2is ahorizontal section of the same. Fig. 3is aface vieWof the front or name plate. Fig. 4 is a rear. View of thesame, showing the locking-cogs. Fig. 5 is 'a detached View of thesliding bolt on which the handle-,bars are pivoted. Fig. 6 is a detachedview of the spring which forces the said bolt outward. Sheet 2, Fig. 7is a front View of the handlebar head, showing the bars in an-elevatedposition. Fig. 8 is a side elevation of the head. Fig. 9 is averticalsection of the head. Figs. l0 and l1 are respectively detached sideviews of the disk ends of the handle-bars, showing their engaging cogs.Fig. 12 is a vertical section of the front or name plate. -Fig. 13 is adetached view of the bolt that holds the said plate onto the head-piece.

A represents the handle-bar head, having a through which the slidingbolt O is inserted when putting the parts together. The inside face ofthe plate B has a series of radial cogs Bv at each side of its centerand at its outer edge. Y

D and D are the handle-bars, each having perforated disks d CZ. The diskd on bar D? is double or bifurcated to receive the single disk d on barD. Each of said bars D D' are provided with radial cogs d" d, designedto mesh with the cogs B on the plate B for locking the handle-bars inplace in any of the positions they may be placed. The perforation in thedisk on bar D is screw-threaded for receiving and holding thescrew-threaded part of the i sliding bolt O, whiclrforms the pivotaljoint on which the bars are turned in elevating or lowering them. Thehandle-bars and this boltare capable of lateral movement in the head Afor the lpurpose of disengaging the cogs on the bars from the cogs onthe front plate B "to their engagement with the said plate and againlocking-them. This is readily done without even letting go the hold onthe handlcs or reducing the speed or stopping the vehicle.4 It istherefore apparent that this is a very ready means for immediatelyadjusting the handle-bars to anyV position desired.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s

1. In bicycle handle-bars, a head attachable to the handle-bar post, aspring-seat in said head, and a recess for the reception of the pivotedends of the handle-bars, afront plate attached to the end of the headand havingl a perforation in line with said spring-seat, handle-barshaving perforated disks and radial IOOy cogs, radial cogs on the insideface of the said front plate adapted to mesh with the said cogs on thebars, and abolt through the front plate, the bar-disks and extendinginto the springseat, and a spring in said seat bearing against saidbolt, adapted to lock the bars in the head, substantially as described.V

2. In bicycle handle-bars, a head, a perforated front plate attached tothe head, radial cogs on the inside face of the said front plate,handle-bars having perforated disks and also provided with radial cogs,a slidable pivotal bolt through the front plate and the bar-disks, andhaving a screw-threaded portion for securing it in one of the bar-disks,its inner end extending into the said spring seat in the head, and aspring in the head bearing against the bolt, and adapted to becompressed by the rearward movement of the handle-bars for adjusting thehandle-bars, substantially as dcscribed.

Signed by me at Toledo, Ohio, this 28th day of June, 1904.

FRANK J. CALKINS.

Witnesses:

EUGENE MEAD, BENJAMIN R. CALKINs,

